Convert Square Inch to Perch

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Conversion Formula:

perch = in² × 0.000026

Convert Square Inch to Perch (in² to perch) instantly with accurate, readable results.

Convert between square meters, acres, square feet, hectares, and other common units with our Area Unit Converter. This intuitive unit conversion tool helps you calculate land size, floor space, and surface area across both metric and imperial systems. Whether you're working on real estate, construction, or geography tasks, our area unit conversion calculator ensures precise and instant results.

From unit

Square inch (in²) - Imperial/US area unit

Square inch is an Imperial/US customary unit of area equal to a square 1 inch on a side. Used for small surface areas in manufacturing, displays, and hardware specs.

  • Symbol: in²
  • System: Imperial/US customary
  • Exact relations: 1 in² = (2.54 cm)² = 6.4516 cm² = 0.00064516 m² = 645.16 mm²
  • Other relations: 1 in² = 1/144 ft² ≈ 0.006944444 ft² ≈ 0.000771605 yd²
  • Typical examples: screen area, gasket/washer footprints, cross-sectional areas in inch–pound drawings
To unit

Perch (square perch, square rod, pole, lug) - traditional land area

Perch is a historical Imperial/US customary unit of area equal to one square rod. Used in older cadastral records and property descriptions alongside roods and acres.

  • Symbol: none standardized (written as “perch”, “sq perch”, or “square rod”)
  • System: Imperial/US customary (historic)
  • Exact relations: 1 perch = 1 square rod = (16.5 ft)² = 272.25 ft² = (5.0292 m)² = 25.29285264 m²
  • Other relations: 40 perches = 1 rood; 160 perches = 1 acre; 16 perches = 1 square chai
  • Typical examples: plot descriptions such as “2 roods 13 perches”; 19th-century deeds and survey plans